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PROBLEM 1. (lpts) The amount of time that a drive-through bank teller spends on a customer is a random variable with a mean of 3.2

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PROBLEM 1. (lpts) The amount of time that a drive-through bank teller spends on a customer is a random variable with a mean of 3.2 minutes and a stande deviation of 1.5 minutes. If a random sample of 31 customers is observed, nd an approximate probability that their mean time at the teller's counter is at least 2.3 minutes. Give the name of the theorem that you are usmg

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